C07C 211/58
Naphthylamines
Official title: Naphthylamines; N-substituted derivatives thereof
C07C211/58 (Naphthylamines) appears on 256 US grants and 350 published applications in this corpus.
Search patents in C07C- Granted patents
- 256
- Published applications
- 350
- Assignees
- 129
- Inventors
- 724
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 5 | 4 |
| 2003 | 3 | 13 |
| 2004 | 8 | 5 |
| 2005 | 3 | 15 |
| 2006 | 6 | 19 |
| 2007 | 10 | 15 |
| 2008 | 6 | 16 |
| 2009 | 7 | 16 |
| 2010 | 6 | 14 |
| 2011 | 12 | 8 |
| 2012 | 6 | 14 |
| 2013 | 11 | 9 |
| 2014 | 9 | 6 |
| 2015 | 14 | 12 |
| 2016 | 5 | 13 |
| 2017 | 9 | 30 |
| 2018 | 9 | 23 |
| 2019 | 22 | 13 |
| 2020 | 11 | 16 |
| 2021 | 14 | 11 |
| 2022 | 13 | 19 |
| 2023 | 15 | 19 |
| 2024 | 12 | 14 |
| 2025 | 9 | 18 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Light emitting device and amine compound for the same9 Jun 2026US 12,649,724 B2Samsung Display Co., Ltd.
- Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device2 Jun 2026US 12,643,849 B2Idemitsu Kosan Co., Ltd.
- Organic electroluminescent device2 Jun 2026US 12,644,046 B2Hodogaya Chemical Co., Ltd.
- Compound and organic light emitting device comprising the same24 Mar 2026US 12,583,814 B2LG Chem.Ltd.
- Heterocylic compound and light-emitting device and electronic apparatus including the heterocyclic compound10 Mar 2026US 12,570,630 B2Samsung Display Co., Ltd.
- Organic compounds and organic light emitting diode comprising the same20 Aug 2026US 2026/0247855 A1Material Science Co., Ltd.
- Aromatic compound, mixture, molecular probe for hyperpolarization, metabolite, diagnostic agent, derivatization agent, naphthalene derivative, catechol derivative, and compound23 Jul 2026US 2026/0209158 A1Nagoya Denki Educational Foundation
- Compound and organic light-emitting device comprising same18 Jun 2026US 2026/0173646 A1Lt Materials Co., Ltd.
- Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, Display Device, and Lighting Device30 Apr 2026US 2026/0116841 A1Semiconductor Energy Laboratory Co.Ltd.
- Light emitting element, monoamine compound for the light emitting element, and electronic apparatus including the light emitting element16 Apr 2026US 2026/0107630 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- OLEDs containing thermally stable asymmetric charge carrier materials134US 6,242,115 B1University of Southern California · 2001
- Organic electroluminescent device having an electrically insulating charge generation layer106US 8,080,934 B2Rohm Co., Ltd. · 2011
- Organic electroluminescent device60US 6,743,948 B1Idemitsu Kosan Co., Ltd. · 2004
- Dichroic azo dyes59US 5,589,100 AHercules Incorporated · 1996
- Light-emitting material for organo-electroluminescence device and organo-electroluminescence device for which the light-emitting material is adapted59US 5,811,834 AToyo Ink Manufacturing Co., Ltd. · 1998